Operation Manual

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Before trapping, you can set the inks; for example, you can set an ink to opaque, as in the case of a metallic ink, so that nothing shows
through it. To reduce the visibility of a trap, you can decrease the amount of ink color in a trap. This is especially helpful in the case of pastel
colors, contrasting colors, and colors with similar neutral densities.
To select a trap width
1
Click File Print.
2 Click the Color tab.
3 Enable the Print composite option.
4 Click the PostScript tab.
5 Choose PostScript 3 from the Compatibility list box.
6 Click the Composite tab.
7 Enable the PostScript level 3 In-RIP trapping check box.
8 Click Settings.
9 Type a value in the Trap width box.
If you are trapping to black, type a value in the Black trap width box.
To select In-RIP trapping options, you must have selected PostScript 3 from the Compatibility list box under the PostScript tab of the
Print dialog box.
To specify image trap placement
1
Click File Print.
2 Click the Color tab.
3 Enable the Print composite option.
4 Click the PostScript tab.
5 Choose PostScript 3 from the Compatibility list box.
6 Click the Composite tab.
7 Enable the PostScript Level 3 In-RIP trapping check box.
8 Click Settings.
9 From the Image trap placement list box, choose one of the following placements:
• Neutral density — used to determine the lighter object and thus the direction and placement of the trap
• Choke — used to trap a dark foreground object to a light background image
• Spread — used to trap a light foreground object to a dark background image
• Centerline — used when adjacent images and objects have similar neutral densities or when image density changes along an object’s
edge
If you want to trap an object to an image, enable the Trap objects to images check box.
To specify a threshold
1
Click File Print.
2 Click the Color tab.
3 Enable the Print composite option.
4 Click the PostScript tab.
5 Choose PostScript 3 from the Compatibility list box.
6 Click the Composite tab.